how can i turn off vfs filesystem?

[QiaoTuCodes]

a question about how can i turn off vfs filesystem in micropython firmware. i'll try disable vfs and just useing freeze mpy files. but all test it's failed. I try from nucleo_stm32f411 board configure file .h to disable needless modules. now build is complete got 230kb firmware file. but my mcu just have 128kb space. i'll just need runing ws2812 lib and pwm. the vfs filesystem can be delete? so how to delete that ?

[fdufnews]

Have you tried this?
https://micropython.org/download/NUCLEO_F411RE/
There is also a link to the source which maybe a good starting point

[QiaoTuCodes]

the nucleo_f411re useing stm32f411ret6 so have 512kb flash space on the core. but i must useing to stm32f410rbt6 that have 128kb flash space on core. so i must small porting a new version.

[QiaoTuCodes]

becaue through deleted vfs filesystem. will release more flash space on firmware and basic retain micropython most of the features.

[jimmo]

What have you tried so far? i.e. have you tried disabling MICROPY_VFS and related options? What tests fail (note that many tests do depend on the filesystem, because they test filesystem features).

[jimmo]

Yes.

[QiaoTuCodes]

so my mcu flash 128k * 1024b = 131072bytes also can't burn that:

(base) isaac@isaac-VirtualBox:~/micropython/ports/stm32/build-STM32F400RBT6$ size firmware.elf
   text	   data	    bss	    dec	    hex	filename
 225856	      8	  20904	 246768	  3c3f0	firmware.elf

the firmware it's used for 225856bytes.

[QiaoTuCodes]

i mean still have to continue cutting right?

[jimmo]

Yes. Go through stm32/mpconfigport.h and turn off every thing you don't need. There will be a lot of work here figuring out exactly what to disable, and fixing up things that assume various features are available.

That said, it's still easier than implementing these things from scratch on the minimal port.

Honestly I don't think this is a good thing to spend time on though -- you will be far better off using a bigger chip.

[QiaoTuCodes]

I could not agree more! after all used me 4 days to focus this question. why not . i'll change new chip. so thank you very much! :)